Windsor Park battle will help us for World Cup: Swansea star
South Korea captain Ki Sung-yueng admitted his side were disappointed to concede a late goal against Northern Ireland but he viewed the Windsor Park battle as a very productive workout ahead of the World Cup Finals.
The Swansea City midfielder (29) was a class act, orchestrating attacks and keeping the home defence on their toes but although it was a game the visitors should have won, Paul Smyth grabbed the headlines with his late, dramatic finish.
South Korea will come up against Germany, Mexico and Sweden in the finals in Russia this summer.
"For some of our players this is the first time they have experienced this type of pitch and the physical nature of other teams and it will help, as will the Poland game," said Ki, who made his 98th appearance for his country.
"Hopefully we can learn a lot from these games and take that to the World Cup because sometimes you have to fight and in football there are a lot of ways to beat teams but Northern Ireland are physically strong and good at set plays.
"That is one way to win games and teams play to their strengths, we must be aware of that."